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EXECUTIVE SUMMARY In July 2003, the Board of County Commissioners approved a contract with Carter Associates, Inc., a local Engineering firm, to work with staff in analyzing and recommending to the Board a policy on improving and maintaining unmaintained roads in developing areas throughout the County. The Study is complete and ready for consideration. Inventory — The Consultant and staff have inventoried 27.25 miles of unmaintained roads as a representative sample of the estimated 142 miles of unmaintained roadway corridors within the unincorporated area. The study inventories various road attributes such as right- of-way width, road condition, drainage, potential number of dwelling units that will be served by the road, projected future traffic count, etc. Based upon this inventory, the roads were classified I through VI based upon potential future traffic count and cross-section. Table 1 includes inventory data. Alternative Designs — From the inventory data, it is obvious that right-of-way width is deficient and road improvements are needed to provide a safe, two-way roadway. Based upon existing and potential use of the road, six typical roadway sections are provided on page 5 and 6 of the study. The typical section defines right-of-way needed, road width, clear zones and drainage. Staff prefers paved roads as being the most economical in the 15-20 year life, especially if the projected traffic count is greater than 400 vehicles perday. Paved roads also reduce silt -laden stormwater from entering the Indian River Lagoon. Cost — Depending upon which typical section is selected based upon annual average traffic count, the cost to improve the road ranges from $37 per lineal foot (unpaved road) to $100 per lineal foot (paved road). Rights -of -Way — Since many of the roads are not within County platted right-of-way, property owners would be requested to donate needed right-of-way. In many cases, utility poles, fences, etc., would have to be relocated. Staff assumes there would be no cost to the County for this work. FS 298 Water Control Districts and Property Owner Associations would be requested to allow use of existing rights-of-way for permanent roadways. Interlocal agreements with drainage districts may be needed. Private subdivisions will require the consent of 100% of their property owners. Fundinq — Since many of the subject rights-of-way have not been owned and accepted by the County for public road maintenance in the past, the standard petition paving 25% County cost share for improvements would not apply. This has historically been the case in private subdivisions such as Westside Subdivision, Country Walk Subdivision, etc. If the County already owns the right-of-way by deed or plat (such as 84th Avenue, south of CR 510) then county funding could apply. The recommended funding options include 100% Special Assessments for smaller benefited areas (less than 40acres) or Municipal Service Benefit Units (MSBU) for benefited areas greater than 40 acres. For those roads currently NAGAS\P\02-88E IRC ROAD INV\REPOR'r\UNMAINTA[NED ROAD STUDY -EXECUTIVE SUMMARY-IWD.DOC 8